Неудача Пуаро (Poirot's Bad Luck) is a Russian mini-series, loosely based on The Murder of Roger Ackroyd by Agatha Christie. The story begins with the death of Mrs. Ferrars, a wealthy widow who is rumoured to have murdered her husband. Her death is initially believed to be an accident until Roger Ackroyd, a widower who had been expected to marry Mrs. Ferrars, reveals that she admitted to killing her husband and then committed suicide.